Jan ( N = 86 )

Feb ( N = 57 )

Mar ( N = 115 )

Apr ( N = 124 )

May ( N = 90 )

Jun ( N = 152 )

Jul ( N = 187 )

Aug ( N = 196 )

Sep ( N = 47 )

May ( N = None )

Jun ( N = 5 )

Jul ( N = 121 )

Aug ( N = 218 )

Sep ( N = 232 )

Oct ( N = 229 )

Nov ( N = 134 )

Dec ( N = 147 )